I like this girl but?

[Raymond]

So I started talking to a girl I use to see in highschool. She had no idea who I was until she messaged me on Facebook because I was selling something and she was interested. So then I told her I knew her & this and that . told her she was pretty and she would always stand out to me. Then I send her flowers to be a gentlemen and she gives them away to a friend . Found out because my friend knows her friend! I told her about it and she said that sorry she wasn't into me. What I don't get is why does she always like my instagram pics & Facebook status. I'm confused. ? I like her and I want her to notice me ! But it's not working out. Need some help. She recently broke up with her bf of 2 years. I feel like she's not over him.